Yep, twice a week makes 20 minutes when I could be out riding instead of wasting time for no good reason.
Can you provide a more accurate link to the page to which you refer? The one I have up says clean the chain once a month, doesn't mentioned anything about flossing and, frankly, is totally ineffective except for appearance's sake, in my view. I don't download videos (I am on dial-up).
The author says he isn't familiar with Pedros Syn Lube and other well-known brands, then says the removal of a chain, soaking in solvent and using a toothbrush is "an excellent technique".
He also makes a great point about him working in bike shops -- maybe your technique is all they use on customer's bikes.
You've really got to wonder.